here are four sketches of substances. each sketch is drawn as if a sample of the substance were under a…

here are four sketches of substances. each sketch is drawn as if a sample of the substance were under a microscope so powerful that individual atoms could be seen. decide whether each sketch shows a sample of an element, a compound, or a mixture.
Answer
Explanation:
Step1: Recall definitions
An element has only one - type of atom, a compound has two or more types of atoms chemically bonded, and a mixture has two or more substances (either elements or compounds) physically mixed.
Step2: Analyze Substance X
There are two distinct types of particles (red - red and blue - blue), so it is a mixture.
Step3: Analyze Substance Y
All particles are the same (red - blue combinations), so it is a compound.
Step4: Analyze Substance Z
There are two types of particles (blue - blue and red - blue), so it is a mixture.
Step5: Analyze Substance T
All particles are the same (blue - blue), so it is an element.
Answer:
Substance X: mixture Substance Y: compound Substance Z: mixture Substance T: element